Characterization of PA12/PBT specimens prepared by selective laser sintering
Characterization of PA12/PBT specimens prepared by selective laser sintering
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DOI：
10.1016/j.optlastec.2017.07.044
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发表时间：
2018-01-01
影响因子：
5
通讯作者：
Magnago, R. F.
中科院分区：
文献类型：
--
作者：
Salmoria, G. V.;Lauth, V. R.;Magnago, R. F.
在本研究中，研究了使用 CO2 激光通过 SLS 制造的 PA12（聚酰胺 12）和 PBT（聚对苯二甲酸丁二醇酯）共混物样品的结构和性能。研究发现 PA12/PBT 共混物样品的微观结构取决于 PBT 含量。 90/10 PA12/PBT 样品呈现出较高的弯曲模量和极限强度值，表明 PA12 基体中少量 PBT 颗粒的硬化效应，从而提供了更高的刚度。 PA12/PBT 90/10 共混物的粘弹性和疲劳测试结果也表明了该共混组合物的弹性特性。验证了使用 SLS 制造具有高刚度和抗疲劳性的 90/10 PA12/PBT 成分的共混零件的潜在应用。 (C) 2017 Elsevier Ltd. 保留所有权利。
In this study the structure and properties of PA12 (Polyamide 12) and PBT (polybutylene terephthalate) blend specimens manufactured by SLS using a CO2 laser were investigated. The microstructures of PA12/PBT blend specimens were found to be dependent on the PBT content. The higher values for the flexural modulus and ultimate strength presented by 90/10 PA12/PBT specimens indicated the hardening effect of low quantities of PBT particles in the PA12 matrix, which provides higher stiffness. The visco-elastic and fatigue test result's for the PA12/PBT 90/10 blend also suggest an elastic characteristic for this blend composition. The potential application in the manufacturing of blend parts with a composition of 90/10 PA12/PBT with high stiffness and fatigue resistance using SLS was verified. (C) 2017 Elsevier Ltd. All rights reserved.